Washington earthquakes

M1.6 earthquake 1 km ENE of Riverton, Washington

A magnitude 1.6 earthquake struck 1 km ENE of Riverton, Washington on Mon, Nov 15, 1976, 11:41 PM PST (07:41 UTC), 23 km (15 mi) below the surface.

A larger quake followed: M2.4 16 km SE of Skykomish, Washington. This one was a foreshock.

Riverton forecastMore in Washington

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.6 (md), micro
Local time
UTC
1976-11-16 07:41:36 UTC
Depth
23.4 km (14.5 mi), shallow
Epicenter
47.493° N, 122.272° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.4 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
112°
Stations used
8

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 27 in the 60 days after this one and 14 in the 30 days before it.

After

  1. 1.513 km WSW of Alder, Washington · 18205 days ago · -1 km deep · 85 km away
  2. 1.56 km S of La Conner, Washington · 18203 days ago · 18 km deep · 95 km away
  3. 2.416 km SE of Skykomish, Washington · 18199 days ago · 6 km deep · 82 km away
  4. 1.79 km ENE of Fall City, Washington · 18198 days ago · 18 km deep · 39 km away
  5. 1.51 km NNW of Kenmore, Washington · 18189 days ago · 56 km deep · 31 km away
  6. 1.60 km E of Clyde Hill, Washington · 18184 days ago · 24 km deep · 16 km away
  7. 1.69 km WSW of Mineral, Washington · 18177 days ago · 17 km deep · 89 km away
  8. 1.84 km NNW of Dash Point, Washington · 18175 days ago · 6 km deep · 21 km away
  9. 3.44 km W of Camano, Washington · 18174 days ago · 54 km deep · 79 km away
  10. 1.65 km WNW of Wauna, Washington · 18174 days ago · 19 km deep · 34 km away
  11. 1.62 km W of Wilderness Rim, Washington · 18173 days ago · 10 km deep · 36 km away
  12. 3.72 km SW of Quilcene, Washington · 18171 days ago · 46 km deep · 58 km away
  13. 1.912 km E of Tanner, Washington · 18166 days ago · 22 km deep · 52 km away
  14. 2.313 km ENE of Ashford, Washington · 18165 days ago · 13 km deep · 83 km away
  15. 2.511 km NW of Belfair, Washington · 18163 days ago · 46 km deep · 51 km away
  16. 2.07 km ENE of Jamestown, Washington · 18162 days ago · 45 km deep · 93 km away
  17. 1.9Puget Sound region, Washington · 18161 days ago · 17 km deep · 37 km away
  18. 2.02 km NW of Indianola, Washington · 18158 days ago · 19 km deep · 36 km away
  19. 2.25 km W of Gorst, Washington · 18156 days ago · 19 km deep · 38 km away
  20. 1.93 km WSW of White Center, Washington · 18155 days ago · 29 km deep · 9 km away
  21. 2.22 km ENE of Lake Marcel-Stillwater, Washington · 18153 days ago · 23 km deep · 37 km away
  22. 2.39 km N of Greenwater, Washington · 18151 days ago · 14 km deep · 54 km away
  23. 2.13 km W of Mineral, Washington · 18149 days ago · 10 km deep · 86 km away
  24. 1.92 km SW of Mineral, Washington · 18149 days ago · 5 km deep · 88 km away
  25. 1.73 km W of Mineral, Washington · 18148 days ago · 10 km deep · 86 km away
  26. 2.013 km NNE of Tanner, Washington · 18147 days ago · 12 km deep · 48 km away
  27. 2.010 km NE of Snoqualmie, Washington · 18147 days ago · 8 km deep · 42 km away

Before

  1. 2.924 km ENE of Ashford, Washington · 18212 days ago · 4 km deep · 80 km away
  2. 3.122 km ENE of Ashford, Washington · 18213 days ago · -1 km deep · 79 km away
  3. 1.86 km SSW of Southworth, Washington · 18218 days ago · 23 km deep · 21 km away
  4. 1.817 km SSE of Darrington, Washington · 18220 days ago · 14 km deep · 90 km away
  5. 1.67 km WSW of Verlot, Washington · 18222 days ago · -1 km deep · 70 km away
  6. 2.516 km ESE of Verlot, Washington · 18224 days ago · 0 km deep · 80 km away
  7. 1.83 km W of Eastmont, Washington · 18225 days ago · 28 km deep · 45 km away
  8. 2.211 km S of Greenwater, Washington · 18229 days ago · 4 km deep · 67 km away
  9. 1.54 km WSW of Hansville, Washington · 18232 days ago · 9 km deep · 53 km away
  10. 1.84 km S of Orting, Washington · 18234 days ago · -1 km deep · 49 km away
  11. 1.91 km W of Hobart, Washington · 18234 days ago · 18 km deep · 22 km away
  12. 1.97 km ENE of Hobart, Washington · 18234 days ago · 22 km deep · 30 km away
  13. 1.61 km SE of Stanwood, Washington · 18235 days ago · 24 km deep · 82 km away
  14. 2.42 km NE of Maple Valley, Washington · 18236 days ago · 13 km deep · 21 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10842563. Read Tue, Sep 22, 2026, 5:23 PM UTC.